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Fixed Timestep Interpolation (2D)

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Adds fixed timestep interpolation to the rendering server (2D only).
Switchable on and off with a project setting (default is off).

Co-authored-by: lawnjelly <lawnjelly@gmail.com>
This commit is contained in:
Ricardo Buring
2024-02-17 00:57:32 +01:00
parent fe01776f05
commit 2ed2ccc2d8
39 changed files with 1040 additions and 75 deletions
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45
servers/rendering/renderer_viewport.cpp
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@@ -31,6 +31,7 @@
#include "renderer_viewport.h"
#include "core/config/project_settings.h"
#include "core/math/transform_interpolator.h"
#include "core/object/worker_thread_pool.h"
#include "renderer_canvas_cull.h"
#include "renderer_scene_cull.h"
@@ -339,7 +340,14 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
if (!F->enabled) {
continue;
}
F->xform_cache = xf * F->xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
if (sdf_rect.intersects_transformed(F->xform_cache, F->aabb_cache)) {
F->next = occluders;
@@ -378,7 +386,14 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
Vector2 offset = tsize / 2.0;
cl->rect_cache = Rect2(-offset + cl->texture_offset, tsize);
cl->xform_cache = xf * cl->xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !cl->interpolated) {
cl->xform_cache = xf * cl->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(cl->xform_prev, cl->xform_curr, cl->xform_cache, f);
cl->xform_cache = xf * cl->xform_cache;
}
if (clip_rect.intersects_transformed(cl->xform_cache, cl->rect_cache)) {
cl->filter_next_ptr = lights;
@@ -386,7 +401,7 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
Transform2D scale;
scale.scale(cl->rect_cache.size);
scale.columns[2] = cl->rect_cache.position;
cl->light_shader_xform = xf * cl->xform * scale;
cl->light_shader_xform = cl->xform_cache * scale;
if (cl->use_shadow) {
cl->shadows_next_ptr = lights_with_shadow;
if (lights_with_shadow == nullptr) {
@@ -406,7 +421,13 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
if (cl->enabled) {
cl->filter_next_ptr = directional_lights;
directional_lights = cl;
cl->xform_cache = xf * cl->xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !cl->interpolated) {
cl->xform_cache = xf * cl->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(cl->xform_prev, cl->xform_curr, cl->xform_cache, f);
cl->xform_cache = xf * cl->xform_cache;
}
cl->xform_cache.columns[2] = Vector2(); //translation is pointless
if (cl->use_shadow) {
cl->shadows_next_ptr = directional_lights_with_shadow;
@@ -441,7 +462,13 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
if (!F->enabled) {
continue;
}
F->xform_cache = xf * F->xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
if (shadow_rect.intersects_transformed(F->xform_cache, F->aabb_cache)) {
F->next = occluders;
occluders = F;
@@ -521,7 +548,13 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
if (!F->enabled) {
continue;
}
F->xform_cache = xf * F->xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
Transform2D localizer = F->xform_cache.affine_inverse();
for (int j = 0; j < point_count; j++) {